CN110785100A

CN110785100A - Closure device for releasably connecting two parts

Info

Publication number: CN110785100A
Application number: CN201880040077.8A
Authority: CN
Inventors: 约阿希姆·菲德勒; 布赖多·博特库斯; 菲利普·克莱因
Original assignee: Fee Was Locke Co Ltd
Current assignee: Fee Was Locke Co Ltd
Priority date: 2017-06-16
Filing date: 2018-06-14
Publication date: 2020-02-11
Anticipated expiration: 2038-06-14
Also published as: US11406149B2; US11076652B2; CN110785100B; US20180360147A1; DE102017210140A1; US20210186134A1; US20210186133A1; EP3638069B1; EP3638069A1; WO2018229221A1; US11571033B2

Abstract

A closure device (1) for releasably connecting two parts, comprising a first closure part (2) and a second closure part (3), the first closure part having: a first substrate (20); at least two first joining sections (21) formed on the first base body (20), which are spaced apart from one another in the load direction (B) and form an intermediate space (22) between them; and at least one first magnetic section (211) arranged at the first base body (20), the second locking part having: a second substrate (30); at least one second joining section (31) formed at the second base body (30); at least one second magnetic section (311) arranged on the second base body (30). The first locking part (2) and the second locking part (3) can be arranged on each other such that in a closed state the at least one second engagement section (31) is at least partially accommodated by the intermediate space (22) for supporting a load acting between the first locking part (2) and the second locking part (3) in the load direction (B), wherein in the closed state the at least one first magnetic section (211) and the at least one second magnetic section (311) cooperate in a magnetically attractive manner. The first base body (20) and/or the second base body (30) are made at least in sections of a flexible material. In this way, a closure for releasably connecting two parts is provided, which can be used variably, for example, on a garment such as a shoe, shirt or jacket or else for connecting further parts.

Description

Closure device for releasably connecting two parts

Technical Field

The invention relates to a closure device for releasably connecting two parts according to the preamble of claim 1.

Background

The closure device comprises a first closure part having a first base body, at least two first engagement sections formed on the first base body, and at least one first magnetic section arranged on the first base body. The at least two first joining sections are spaced apart from one another in the load direction and form an intermediate space between them. A second locking part can be arranged on the first locking part, and the second locking part has a second base body, at least one second engagement section formed on the second base body, and at least one second magnetic section arranged on the second base body. If the first locking part and the second locking part are already arranged on each other, the at least one second engagement section is at least partially accommodated by the intermediate space in the closed state, so that a load acting in the load direction between the first locking part and the second locking part is supported.

The closure parts are thereby held together and in the closed state by magnetic attraction of the magnetic sections of the closure parts.

Such a closure can be used, for example, on clothing, such as shoes, shirts, jackets, etc., but also, for example, on bags, etc. In this case, it is desirable to be able to mount the closure variably, without the closure, for example, significantly impairing the comfort of the user.

Such a closure should be easily closable and also easily openable again, but in the closed state, it is possible to absorb the load in the shear direction, i.e. in the load direction, so that the parts connected to one another via the closure are not easily releasable from one another due to the load.

Disclosure of Invention

The object of the invention is to provide a closure for releasably connecting two parts, which can be used variably, for example, on a garment, such as a shoe, a shirt or a jacket, or also for connecting further parts.

This object is achieved by the subject matter having the features of claim 1.

Accordingly, the first and/or second base body is at least partially made of a flexible material.

In particular, the first and/or second base body can be arranged on the associated component in a variable manner, if appropriate variably adapted to the shape of the component, by the first and/or second base body being made at least in sections of a flexible material.

Flexible material is herein understood to be the following material: the material provides an elastic, flexible deformability at the first and/or second substrate, so that the first and/or second substrate, at least in such sections made of flexible material, can be flexibly adapted in terms of its shape.

Furthermore, the use of flexible materials has an effect on the locking parts being held together with each other. Thus, in the closed state, an advantageous (static) friction can be provided between the engagement sections of the locking parts by using a flexible material, which friction ensures that the locking parts are held fixedly together with each other.

The use of flexible materials can also cause the closure to open and close acoustically with low sound.

Preferably, at least two first joining sections of the first base body and/or at least one second joining section of the second base body are made of a flexible material. Additionally or alternatively, the intermediate section of the first main body between the at least two first joining sections can also be made of a flexible material.

Deformability at the joining section is obtained if the joining section is made of a flexible material. If the intermediate section between two adjacent joining sections is made of a flexible material, deformability of the base body of the closure element is obtained, in particular for the bends seen in the load direction.

The flexible material can be, for example, a thermoplastic elastomer, in particular a thermoplastic polyurethane elastomer (TPU for short), or a synthetic rubber material, in particular nitrile rubber (NBR for short).

The flexible material can have a fiber content, for example a glass fiber content, advantageously a content of less than 15 wt.% (wt.% in relation to the total weight of the material).

In one embodiment, the at least two first joining sections and/or the at least one second joining section extend in the form of a web transversely to the load direction. In this way, a bracing is achieved counter to the load direction by the engagement of at least one second engagement section into the intermediate space between two adjacent first engagement sections, as a result of which bracing the closure parts are held together in the closed state. In this case, the at least one second engagement section is preferably accommodated in a form-fitting manner in the intermediate space between two adjacent first engagement sections and is held between the adjacent first engagement sections by magnetic attraction between the magnetic sections of the closure part, wherein (static) friction can exist between the engagement sections, which friction also ensures that the closure parts are held together with one another under relatively high loads and, if necessary, deformation at the base body as a result of the loads.

The connecting section in the form of a web can extend straight transversely to the load direction. However, it is also conceivable and feasible for the joining sections in the form of webs to run in a curved manner at the respective base body.

Via the magnetic sections of the closure parts, a magnetic attraction between the closure parts is provided when the closure parts are placed and in the closed state. The magnetic section can be realized in various ways.

In a first embodiment, separate magnetic elements, for example in the form of permanent-magnetic elements in each case or in the form of permanent-magnetic elements on the one hand and magnetic armatures (of ferromagnetic material) on the other hand, are provided at the base body of the closure part.

In an alternative embodiment, the magnetic section can also be produced by partially magnetizing the first and/or second basic body. In this case, the magnetic section is formed in one piece with the base body in the following manner: the substrate is made of or has a magnetic material and is at least partially magnetized to provide a magnetic effect.

At each base body, one or more magnetic sections, for example in the form of discrete magnetic elements, can be provided.

In an advantageous embodiment, two first joining sections on the first base body and at least one second joining section of the second base body can each be assigned a magnetic section, for example. In particular, a separate magnetic element can be provided in each joining section, so that the magnetic action is present directly at and between the joining sections.

Alternatively, the magnetic section can also be arranged in the region of an intermediate space between two adjacent first joining sections at the base of the first locking part. In this case, for example, the discrete magnetic elements are arranged in the base body of the first locking part below the intermediate space. The magnetic effect is present in the region of the intermediate space, but not directly at the engagement section of the first locking member.

The magnetic sections can be magnetized in different ways.

In one embodiment, at least one first magnetic section of the first closure part and/or at least one second magnetic section of the second closure part is magnetized in a magnetization direction that is collinear with the load direction. The north and south poles of the magnetic sections are thus offset from each other in the load direction. In particular, when the magnetic section is formed directly at the engagement section, a magnetic attraction is obtained between the first engagement section of the first closure part and the second engagement section of the second closure part in the closed state in a direction which is directed in line with the load direction. In this way, for example, a favorable (static) friction can be set between the joining sections.

In an alternative embodiment, the magnetic section can also be magnetized perpendicularly to the load direction, in particular along a closing direction, along which the closure parts can be placed together with one another in order to close the closure device. In this case, the magnetic attraction acts in particular in the closing direction. Such a magnetization can be advantageous, for example, if the magnetic section of the first locking part is arranged between the first engagement sections below the intermediate space.

In one embodiment, at least one second engagement section has an abutment surface which, in the closed state, abuts one of the at least two first engagement sections of the first closure part for supporting a load acting in the load direction on the second closure part. Via the contact surfaces, a (static) friction is caused between the second engagement section of the second locking part and the associated first engagement section of the first locking part, as a result of which the locking parts are also held securely against one another under load, so that the locking parts cannot easily be released from one another under load.

In one embodiment, the contact surface is inclined with respect to the load direction and with respect to the closing direction, so that, when a load is applied to the second closure part in the load direction, at least one second engagement section is loaded with a force component in the closing direction with respect to the first closure part, wherein the closure parts can be placed together with one another in the load direction and in the closing direction. Thus, the engagement between the engagement sections of the locking member is self-reinforcing when loaded. Due to the inclination of the contact surfaces, when a load is applied in the load direction, the force component (obtained by vector decomposition) acts in the closing direction and thus in the direction of the engagement of the second engagement section of the second locking part into the intermediate space between the adjacent first engagement sections of the first locking part.

Preferably, the engagement sections of the first closure part each have an abutment surface which is complementary to the abutment surface of the second engagement section of the second closure part, so that in the closed state, a surface abutment exists between the abutment surfaces associated with each other.

The engagement sections of the first and second locking parts can in particular each have a basic shape in cross section which corresponds to the shape of a non-rectangular parallelogram.

In addition or alternatively, undercuts can also be formed between the joining sections, which undercuts hold the joining sections together against the closing direction in the closed state.

In one embodiment, the first base body and/or the second base body is/are curved, as viewed in the load direction. Thus, in a plane spanned by the loading direction and the closing direction, the first base body and/or the second base body are bent, for example, in an arc. By means of the predetermined curvature (for example in the initial state in the non-loaded closure and without deformation of the respective base body), it is possible to provide that the closure parts of the closure can be deformed in advance, for example, so that they can be mounted in an advantageous manner on the parts to be connected to one another.

If the closure is used, for example, on a shoe, the base body of the closure part of the closure can be deformed beforehand so as to match the shape of the shoe.

In one embodiment, the first base body can be connected to the first component and the second base body can be connected to the second component. The first base can have a first fastening section, via which the first base is connected to the first component, wherein the first fastening section defines a plane extending in the load direction, relative to which plane the bottom of the intermediate space is set back. Additionally or alternatively, the second base can have a second fastening section via which the second base is connected with the second component, wherein the second fastening section defines a plane extending in the load direction, relative to which plane a bottom indentation connected to the at least one second engagement section is set back.

In this case, for example, the intermediate spaces between the first joining sections of the first base body are formed as recesses in the first base body. Via the fastening section, the textile section of the garment can be connected, for example sewn or glued, to the base body, for example, in such a way that the joining section of the first base body does not project beyond the fastening section of the garment. In addition or alternatively, the fastening section can also define a plane for fastening on the second component, for example a textile section, at the second base of the second closure component, the at least one second engagement section not projecting outwardly beyond said plane.

It is also conceivable and feasible for the bottom of the intermediate space of the first base body and the bottom of the second base body connected to the second coupling section to be each set back relative to the respective fastening section, wherein in this case the coupling sections are each partially sunk in the base body, but still project outward beyond the fastening sections, for example by half their height, respectively.

The object is also achieved by a closure for releasably connecting two parts, having a first closure part and a second closure part, the first closure part having: a first substrate; at least two first joining sections formed on the first base body, the first joining sections being spaced apart from each other in the load direction and forming an intermediate space therebetween; and at least one first magnetic section provided at the first base, the second locking member having: a second substrate; at least one second joining section formed at the second base; and at least one second magnetic section arranged at the second base body, wherein the first locking part and the second locking part can be placed together such that in a closed state the at least one second engagement section is at least partially accommodated by the intermediate space for supporting a load acting between the first locking part and the second locking part in a load direction, wherein in the closed state the at least one first magnetic section and the at least one second magnetic section cooperate in a magnetically attractive manner. It is proposed that the first base body and/or the second base body is/are curved, as viewed in the load direction.

Furthermore, the object is also achieved by a closure for releasably connecting two parts, having a first closure part and a second closure part, the first closure part having: a first substrate; at least two first joining sections formed on the first base body, the first joining sections being spaced apart from each other in the load direction and forming an intermediate space therebetween; and at least one first magnetic section provided at the first base, the second locking member having: a second substrate; at least one second joining section formed at the second base; and at least one second magnetic section arranged at the second base body, wherein the first locking part and the second locking part can be arranged together such that in a closed state the at least one second engagement section is at least partially accommodated by the intermediate space for supporting a load acting between the first locking part and the second locking part in the load direction, wherein in the closed state the at least one first magnetic section and the at least one second magnetic section cooperate in a magnetically attractive manner. It is proposed that the first base body can be connected to the first component and the second base body can be connected to the second component, wherein the first base body has a first fastening section via which the first base body is connected to the first component, wherein the first fastening section defines a plane extending in the load direction, relative to which plane the bottom of the intermediate space is set back, and/or the second base body has a second fastening section via which the second base body is connected to the second component, wherein the second fastening section defines a plane extending in the load direction, relative to which plane the bottom of the at least one second coupling section is set back.

The advantages and advantageous embodiments described above apply analogously to both locks, so that reference should be made in full to what has been done previously.

Closures of the aforementioned type can be used in particular in garments, such as shoes, jackets, shirts and the like. Furthermore, it is also conceivable to use closure devices of the type mentioned at prostheses, orthotics or other medical aids. However, this should not be construed as limiting. A closure of the type mentioned can in principle be used for the connection of completely arbitrary components to one another.

Drawings

The idea on which the invention is based will be explained in detail below on the basis of embodiments shown in the drawings.

The figures show:

FIG. 1A shows an exploded perspective view of one embodiment of a closure having an engagement section and a form fitting section;

FIGS. 1B-1I show top and cross-sectional views of the closure of FIG. 1A; and

FIG. 2A shows an exploded perspective view of one embodiment of a closure with an engaging section having a parallelogram cross section;

2B-2D show top and cross-sectional views of the closure of FIG. 2A;

FIG. 3 shows an exploded perspective view of another embodiment of the locking device;

FIG. 4 shows a top view of the locking device;

fig. 5A shows a cross-sectional view along the line a-a according to fig. 4 in the closed state of the closure;

FIG. 5B shows a cross-sectional view according to FIG. 5A when the closure is open;

FIG. 6 shows an exploded perspective view of another embodiment of the locking device;

FIG. 7 shows a top view of the locking device;

fig. 8A shows a cross-section of the closure device along the line a-a according to fig. 7 in the closed state of the closure device;

FIG. 8B shows a cross-sectional view according to FIG. 8A when the closure is open;

FIG. 9 shows an exploded perspective view of another embodiment of the locking device;

FIG. 10 shows a top view of the closure;

FIG. 11A shows a cross-sectional view along the line A-A according to FIG. 10 when the closure is open;

FIG. 11B shows a view of the closure when closed;

FIG. 11C shows a view of the closure upon further closure;

FIG. 11D shows a cross-sectional view of the closure along the line A-A according to FIG. 10 when the closure is closed;

FIG. 12 shows an exploded perspective view of another embodiment of the locking device;

FIG. 13 shows a top view of the locking device;

FIG. 14A shows a cross-sectional view along the line A-A according to FIG. 13 when the closure is open;

FIG. 14B shows a view of the closure when closed;

FIG. 14C shows a view of the closure upon further closure;

figure 14D shows a cross-section of the locking device along the line a-a according to figure 13 in the closed state of the locking device;

FIG. 15 shows an exploded perspective view of another embodiment of the locking device;

FIG. 16 shows a top view of the locking device;

FIG. 17A shows a cross-sectional view along the line A-A according to FIG. 16 when the locking device is open;

FIG. 17B shows a view of the closure when closed;

FIG. 17C shows a view of the closure upon further closure;

FIG. 17D shows a cross-sectional view along the line A-A according to FIG. 16 in the closed state of the closure; and

figure 18 shows a sketch of yet another embodiment of the closure.

Detailed Description

Fig. 1A to 1I show different views of a first embodiment of a locking device 1 with engaging

sections

21, 31 and form-fitting

sections

23, 33. Such a closure 1 can generally be designed for releasably connecting two parts to one another. Such a closure 1 can be arranged, for example, on a garment or on a bag.

For example, as shown in fig. 1A, the closure 1 comprises a first closure part 2 and a second closure part 3, wherein the two

closure parts

2, 3 can be placed together with each other for closing the closure 1 in a closing direction Z. Each locking

part

2, 3 has a

base body

20, 30 which extends substantially in the respective extension plane XY, X 'Y'.

At the base body 20 of the first locking part 2, three first joining sections 21 are provided, wherein each two adjacent joining sections 21 are spaced apart from each other and form an intermediate space 22 between each other. A second engagement section 31 is provided at the side of the base 30 of the second locking member 3 facing the first engagement section 21.

As is evident from the exploded illustration according to fig. 1A, each first joining section 21 comprises a first permanent magnet 211 having a first magnetization direction M1, wherein the first magnetization direction M1 points from the north pole N to the south pole S of the respective first permanent magnet 211. Correspondingly, the second joining section 31 also comprises a second permanent magnet 311 with a second magnetization direction M2, which points from the north pole N to the south pole S of the second permanent magnet 311. When using the closure 1, the

permanent magnets

211, 311 are arranged in the recesses of the first joining section 21 or the second joining section 31 provided for this purpose.

For closing the closure 1, the first closure part 2 and the second closure part 3 can be placed together with one another in the closing direction Z, so that the closure 1 assumes the closed state shown in fig. 11. In the closed state, the respective planes XY, X 'Y' of extent of the

bases

20, 30 of the first closure part 2 and of the second closure part 3 extend substantially parallel to one another and perpendicularly to the closing direction Z.

As is apparent from fig. 1I, in the closed state the second joining sections 31 are accommodated by one of the intermediate spaces 22 formed between adjacent second joining sections 21. In this case, a magnetic attraction force K1, K2, respectively, which points substantially perpendicularly to the closing direction Z, acts between the second joining section 31 on the one hand and each of the two first joining sections 21, which form the intermediate space 22 on the other hand, as a function of the orientation of the north pole and the south pole N, S toward one another. The magnetic attractive forces K1, K2 directed perpendicularly to the closing direction Z hold the closure 1 securely in its closed state.

In order to generate the magnetic attraction forces K1, K2 in the closed state, the

permanent magnets

211, 311 are arranged in the respective joining

sections

21, 31 such that the first magnetization direction M1 and the second magnetization direction M2 run parallel to one another and point substantially perpendicularly to the closed state Z. In the closed state, the magnetization directions M1, M2 and the magnetic attractive forces K1, K2 run substantially parallel to the extension plane XY, X 'Y' of the

substrates

20, 30.

Fig. 1B to 1I referred to below illustrate a possible closing process of the closure 1. Fig. 1B, 1D, 1F and 1H in this case each show a plan view of the closure device 1 according to fig. 1A, and fig. 1C, 1E, 1G and 1I show corresponding sectional views along the corresponding section line a-a.

Fig. 1B and 1C show the open state of the closure 1. In contrast, fig. 1H and 1I illustrate the closed state of the lock apparatus 1. Possible intermediate states which the closure 1 can occupy during the closing process are shown in fig. 1D to 1G.

In addition to the joining section 21, the first locking part 2 comprises six form-fitting sections 23, two of which laterally surround the joining section 21 and each have a form-fitting surface 231 extending obliquely to the closing direction. Three positive-locking sections 23 are arranged at the base body 20 of the first locking part 2 at a uniform distance from one another, similar to the joining sections 21. Likewise, the second locking part 3 comprises two second formfitting sections 33 complementary to the first formfitting sections 23, which laterally surround the second joining sections 31 and each have a formfitting surface 331 running obliquely to the closing direction Z.

The first positive-locking portion 23 on the one hand and the second positive-locking portion 33 on the other hand are designed and provided for positive-locking engagement with one another in the closed state of the closure device 1, so that a relative movement of the

closure parts

2, 3 relative to one another, which is directed counter to the closing direction Z, is prevented, by which relative movement the

closure parts

2, 3 will move away from one another. Referring to fig. 1I, in other words, in the closed state, the form-fitting sections of the first locking part 2 on the one hand and the form-fitting

sections

23, 33 of the second locking part 3 on the other hand engage behind one another in a form-fitting manner with respect to the closing direction Z. For this purpose, the inclined form-fitting surface 231 of the first form-fitting section 23 faces the base body 20 of the first locking part 2. The form-fitting surface 331 of the second form-fitting section 33 faces correspondingly to the base 30 of the second locking part 3.

In the closed state of the closure device 1, the two

closure parts

2, 3 can be reliably connected by means of a form-fitting engagement of the form-fitting

sections

23, 33. As a result, the lock 1 can be prevented from being opened unintentionally due to a relative movement of the

lock parts

2, 3 counter to the closing direction Z, by which relative movement the two

lock parts

2, 3 will move away from each other. Furthermore, external shearing forces, which can act at the

closure parts

2, 3 perpendicular to the closing direction Z, can be absorbed by the form fit of the form-fitting

sections

23, 33 to one another.

In a further variant (not shown), the first form-fitting section 23 and/or the second form-fitting section 33 can be formed by a "true" mechanical undercut at the

respective locking part

2, 3, wherein the first form-fitting section 23 and/or the second form-fitting section 33 each have at least one form-fitting surface running substantially perpendicular to the closing direction Z.

Furthermore, a

first guide section

24, 34 is provided at each of the two

closure parts

2, 3. In the exemplary embodiment shown, the

first guide sections

24, 34 are in this case designed as first guide surfaces 241, 341 extending obliquely to the closing direction Z at the form-fitting

sections

23, 33 laterally surrounding the joining

sections

21, 31.

As is evident in fig. 1G, the

first guide sections

24, 34 are designed to preset a relative movement R2 of the

closure parts

2, 3 relative to one another, directed perpendicularly to the closing direction Z, when the

closure parts

2, 3 are placed together, in order to bring the at least one first positive-locking section 23 and the at least one second positive-locking section 33 into positive engagement with one another, which corresponds to the closed state shown in fig. 1.

For this purpose, the first guide surfaces 241 of the first locking parts 2 each form a first abutment section 25 for sliding up on the first guide surface 341 of the second locking part 3. In contrast, the first guide surfaces 341 of the second locking part 3 each form a first abutment section 35 for sliding up on the first guide surface 241 of the first locking part 2.

For example, when the second locking part 3 is placed onto the first locking part 2 along the closing direction Z, the second locking part 3 can be slid with its first contact section 35 onto the first guide surface 241 of the first locking part 2 and thereby deflected perpendicularly to the closing direction Z (corresponding to the relative movement R2 indicated in fig. 1G) such that the form-fitting

surfaces

231, 331 of the first and

second locking parts

2, 3 positively engage one another in order to prevent a relative movement directed parallel to the closing direction Z, by which relative movement the

locking parts

2, 3 will move away from one another.

In this case, when the first guide surface 241 of the first closure part 2 slides upward, the second closure part 3 is loaded with a shearing force applied perpendicularly to the closing direction Z, which causes a movement deflection and a resulting relative movement R2 into the closed state. The process corresponds to the step from the intermediate state of the lock 1 shown in fig. 1G to the closed state shown in fig. 1I.

In this way, a particularly simple closing operation can be achieved, since the user only needs to place the

closure parts

2, 3 together with one another approximately in the closing direction Z. The locking of the form-fitting

sections

23, 33 into a form-fitting relationship with one another and the resulting relative movement R2 is then effected approximately automatically by the shearing forces caused by the guide surfaces 241, 341 or by the

abutment sections

25, 35. The magnetic attraction between the joining

sections

21, 31 plays an additional supporting role in this case for the closing process.

As shown in fig. 1I, in the closed state, the first joining section 21 and the joining section 31 are arranged in succession in line with the direction of action of the shear forces occurring for occupying the closed state, i.e. with the direction of the relative movement R2. Here, the first magnetization direction M1 of the first permanent magnet 211 arranged in the first joining section 21 and the second magnetization direction M2 of the second permanent magnet 311 arranged in the second joining section 31 run parallel to one another and point substantially perpendicularly to the closing direction Z. In this case, the first joining section 21 and the second joining section 31 are arranged one behind the other with respect to the first magnetization direction M1 and the second magnetization direction M2.

When the

locking parts

2, 3 are loaded with an external shearing force acting counter to the relative movement R2, the magnetic attraction forces K1, K2, which are correspondingly oriented perpendicularly to the closing direction Z, also hold the locking device 1 in its closed state, as long as the external shearing force does not exceed the magnetic forces K1, K2. In this way, unintentional opening of the closure 1 can be prevented. In contrast, external shearing forces acting on the

closure parts

2, 3 in the direction of the relative movement R2 can be absorbed by the form-fitting engagement of the form-fitting

sections

23, 33 in the closed state.

In addition to the

first guide sections

24, 34,

second guide sections

27, 37 are provided at the two

closure parts

2, 3, respectively. The

second guide sections

27, 37 are also designed here as second guide surfaces 271, 371 which run obliquely to the closing direction Z at the form-fitting

sections

23, 33 which laterally surround the joining

sections

21, 31.

The function of the

second guide sections

27, 37 is clearly evident from the step from the intermediate state shown in fig. 1E to the intermediate state shown in fig. 1G. Accordingly, the

second guide sections

27, 37 are designed to initially preset a first relative movement R1 of the

closure parts

2, 3 relative to one another, which is directed perpendicularly to the closing direction Z, when the

closure parts

2, 3 are placed together, in order to bring the first guide section 24 of the first closure part 2 on the one hand and the first guide section 34 of the second closure part 3 on the other hand into contact with one another (see fig. 1G).

For this purpose, the second guide surfaces 271 of the first locking parts 2 each form a second abutment section 26 for sliding up on the second guide surfaces 371 of the second locking parts 3. In contrast, the second guide surfaces 371 of the second locking parts 3 each form a second abutment section 36 for sliding up on the second guide surface 271 of the first locking part 2.

In a first step, the second closure part 3 can be slid with its second abutment section 36, for example, onto the second guide surface 271 of the first closure part 2 and can thus be deflected perpendicularly to the closing direction Z (corresponding to the first relative movement R1 indicated in fig. 1E) in such a way that the first guide surfaces 241, 341 of the first closure part 2 and of the second closure part 3 abut against one another (see fig. 1G).

Subsequently, in a second step, as described above with reference to fig. 1G and 1I, the second locking part 3 can be moved along the first guide section 24 in a second relative movement R2 towards the form-fitting section 23 of the first locking part 2 in order to form-fittingly engage therewith and thus establish the closed state of the locking device 1. The second relative movement R2 is directed opposite to the first relative movement R1.

By means of the described mutual engagement of the

second guide sections

27, 37 and the

first guide sections

24, 34, a certain tolerance is ensured when the

closure parts

2, 3 are placed together, which simplifies the closing of the closure device 1 for the user. The user therefore does not have to take any effort to place the two

closure parts

2, 3 together in a targeted manner in the region of their

first guide sections

27, 37.

It is obviously also possible for the first locking part 2 to come into direct contact with the first guide section 34 of the other locking part 3 when the locking

parts

2, 3 are placed together, without having to be pivoted in advance at the second guide section 37. In this case, the

first guide section

24, 34 can be arranged over the entire width thereof, so that no particularly targeted arrangement is required. The

first guide sections

24, 34 themselves therefore also contribute to tolerances in the setting movement and thus to a particularly simple closing operation of the closure device 1.

Fig. 2A shows a second embodiment of the closure 1 according to the invention in a perspective exploded view. Fig. 2B shows the lock 1 according to fig. 2A in a top view. In fig. 2C, an associated cross-sectional view along the section line a-a indicated in fig. 2B is shown. Fig. 2D shows a sectional view of the closure 1 in its closed state according to the second embodiment.

The lock apparatus 1 shown in fig. 2A to 2D has a basic structure and function similar to the lock apparatus 1 described with reference to fig. 1A to 1I. Therefore, the previous description of the first embodiment also applies in principle to the second embodiment according to fig. 2A to 2D.

However, in contrast to the first exemplary embodiment, in the closure 1 according to fig. 2A to 2D, both the

engagement sections

21, 31 and the

permanent magnets

211, 311 arranged therein each have a cross section in the form of a non-rectangular parallelogram (see, in particular, fig. 2C and 2D). The first and second positive-locking

portions

23, 33 are each formed by a surface of the joining

portions

21, 31 extending obliquely to the closing direction Z.

This has the following advantages, in particular in the case of a cascade-type embodiment with at least three first joining sections 21 and thus at least two intermediate spaces 22 (as in the exemplary embodiment according to fig. 2A to 2D): if the second closure part 3 should be moved from a first closed position, in which it is accommodated by the intermediate space 22-1, into a second closed position, in which it is accommodated by the second intermediate space 22-2, this can take place by a force F applied in a direction perpendicular to the closing direction Z, without it being necessary to first open the closure 1 by means of a force acting counter to the closing direction Z, because the side of the engagement section 21, which is parallelogram in cross section, redirects the force F correspondingly. The closure device 1 therefore acts like a freewheel, which can be locked in one direction and easily adjusted in the other direction. Thereby, the opening of the closure 1 can also be performed in a particularly simple manner.

The

base bodies

20, 30 of the

closure parts

2, 3 in the exemplary embodiment according to fig. 1 and 2 are formed completely or partially from a flexible material, in particular a thermoplastic elastomer or an elastomer. Thus, the

substrates

20, 30 are at least in sections flexibly deformable.

The joining

sections

21, 31 can in particular be made of such a flexible material.

Additionally or alternatively, further sections, in particular intermediate sections between adjacent joining sections 21 of the first locking part 2, can also be made of a flexible material.

By forming the

base bodies

20, 30 of the

closure parts

2, 3 at least partially from a flexible material, a deformability is achieved at the

closure parts

2, 3, which deformability makes it possible, on the one hand, to fasten the

closure parts

2, 3 in a variable manner with a shape adapted to the associated object, for example a garment or the like. On the other hand, in the case of flexible materials, due to the advantageous static friction between the

engagement sections

21, 31 in the closed state, it is also possible to obtain an advantageous connecting effect in the closed state and to advantageously hold the

closure parts

2, 3 together with one another.

In the exemplary embodiment shown in fig. 3 to 5A, 5B, three engagement sections 21 are provided on the base body 20 of the first locking part 2, which are offset from one another in the load direction B and extend in the form of webs transversely to the load direction B on the base body 20. Formed on the base body 30 of the second locking part 3 is an engagement section 31 in the form of a web which is complementary to the intermediate space 22 between two adjacent engagement sections 21 of the first locking part 2 and which is received in a form-fitting manner between adjacent engagement sections 21 in the closed state (fig. 5A).

In each joining

section

21, 31 of the

closure parts

2, 3, in the illustrated embodiment, a magnetic section in the form of a separate

magnetic element

211, 311 is provided, which is magnetized in line with the load direction B, similarly to what was described previously with reference to fig. 1 and 2, and thus in the closed state causes a magnetic attraction force between the joining

sections

21, 31 substantially along the load direction B.

To close the closure 1, the engagement section 31 of the second closure part 3 is inserted into one of the intermediate spaces 22 between the engagement sections 21 of the first closure part 2 and for this purpose approaches the first closure part 2 in the closing direction Z. In the closed state (fig. 5A), the engagement section 31 of the second closure part 3 is accommodated in one of the intermediate spaces 22, wherein, due to the magnetic attraction and the loading in the loading direction B, (static) friction is generated via the contact surface 313 which is in contact with one of the engagement sections 21, as a result of which the

closure parts

2, 3 are held together in a form-fitting and force-fitting manner.

The

base bodies

20, 30 are in turn at least partially made of a flexible material and are thus deformable, wherein, due to the material selection, advantageous static friction can also occur under high loads.

In the modified embodiment shown in fig. 6 to 8A, 8B, the magnetic element 211 of the first locking part 2 is arranged below the intermediate space 22 (and thus not within the joining section 21 as in the embodiment according to fig. 3 to 5A, 5B). The magnetic attraction between the

closure parts

2, 3 therefore acts in particular in the vertical direction along the closing direction Z, wherein the

magnetic sections

211, 311 of the

closure parts

2, 3, for example, realized by separate magnetic elements, can be magnetized similarly to in the exemplary embodiment according to fig. 1 and 2 and in the exemplary embodiment according to fig. 3 to 5A, 5B. Alternatively, however, the

magnetic sections

211, 311 can also be magnetized in the closing direction Z, so that the magnetic poles of the magnetic section 211 of the first closure element 2 associated with the intermediate space 22 are magnetically opposite to the different magnetic poles of the magnetic section 311 of the second closure element 3 in an attractive manner (in the closing direction Z).

In addition, reference should be made to what was previously carried out, in particular for the embodiments according to fig. 3 to 5A, 5B.

In the exemplary embodiment shown in fig. 9 to 11A to 11D, the

base bodies

20, 30 of the

closure parts

2, 3 are formed in a curved manner in a plane (corresponding to the plane of the drawing in fig. 11A to 11D) which is open in the closing direction Z and the loading direction B, so that the engagement sections 21 of the first closure part 2 are aligned with one another in the direction of curvature.

In this case, the

substrates

20, 30 can each be made at least partially of a flexible material. Alternatively, however, it is also conceivable for the

base bodies

20, 30 to be made of a rigid material, i.e. a material which is not deformable or only barely deformable and thus is not flexible and can be adapted to the shape of, for example, a garment or the like.

In the exemplary embodiment shown, two intermediate spaces 22 formed between the three engagement sections 21 are provided at the first closure part 2, into which the engagement sections 31 of the second closure part 3 can be inserted in the closing direction Z, as can be seen in the transition from fig. 11A to fig. 11D.

The

engagement sections

21, 31 each have the basic shape of a parallelogram which is not rectangular in cross section, so that the contact surface 313 of the engagement section 31 of the second locking part 3 is inclined both with respect to the closing direction Z and with respect to the load direction B and, in the closed state (fig. 11D), comes into contact with the associated engagement section 21 of the first locking part 2 in a self-reinforcing manner. Due to the inclination of the contact surface 313, in particular when loading in the load direction B, a force component acts on the engagement section 31 of the second locking part 3 in the direction of engagement with the intermediate space 22 between the engagement sections 21 of the first locking part 2 at the locking part 3 due to the force redirection, so that the engagement is additionally stabilized in the case of loading.

As is apparent from fig. 11A and 11B, the engagement section 31 of the second closure part 3 has a guide section 371 in the form of a contact ramp at an edge, which, when the

closure parts

2, 3 are placed together, comes into contact with a guide section 271 in the form of a contact ramp at one of the engagement sections 21 of the first closure part 2 and as a result of this the guidance of the engagement section 31 of the second closure part 3 brings about engagement with the intermediate space 22 of the first closure part 2.

On the underside of the engagement section 31 of the second locking part 3, as is clear from the overview of fig. 11A and 9, there are formed projecting elements 38 which, when the locking device 1 is closed, engage with the associated recesses 28 at the bottom of the intermediate space 22 and thus position the engagement section 31 within the intermediate space 22 in a defined manner, as is clear from fig. 11B. As a result of the engagement of the projecting element 38 with the recess 28, the joining section 31 therefore assumes a defined position within the intermediate space 22 in which the abutment surface 313 abuts the associated joining section 21 (to the left of the abutment surface 313 in fig. 11 DD).

In the embodiment shown in fig. 12 to 14A to 14D, the functionality is essentially the same as in the embodiment according to fig. 9 to 11A to 11D, wherein in this case the

basic bodies

20, 30 are not bent as seen in a plane, which is expanded by the closing direction Z and the loading direction B, corresponding to the drawing plane according to fig. 14A to 14D). In this case, the

substrates

20, 30 are preferably each made at least partially of a flexible material.

Otherwise, for the operation of the lock 1 of the embodiment, reference should be made to what was previously carried out for the embodiment according to fig. 9 to 11A to 11D.

In the exemplary embodiment shown in fig. 15 to 17A to 17D, in a variant of the exemplary embodiment according to fig. 12 to 14A to 14D, the intermediate spaces 22 between the engagement sections 21 of the first locking part 2 are sunk in the base body 20 in the following manner: the bottom 221 of the intermediate space 22 is set back relative to the fastening section 200, via which the part 4, for example a textile section of a garment, can be connected, for example glued or sewn, to the base body 20.

In particular, in the exemplary embodiment, the engagement section 21 of the first locking part 2 does not project outward (counter to the closing direction Z) beyond the fastening section 200, so that the engagement section 21 sinks in the base body 20.

In other cases, the embodiment is functionally identical to the embodiment according to fig. 9 to 12A to 12D and 13 to 15A to 15D, so that reference should also be made to what was previously carried out.

In a modification of the exemplary embodiment according to fig. 15 to 17A to 17D, as is schematically illustrated in fig. 18, the engagement section 31 of the second closure part 3 can alternatively be sunk in the base body 30 in the following manner: the engagement section 31 does not project outwardly beyond the fastening section 300 and the bottom 321 is set back relative to the fastening section 300 from an intermediate space (recess) 32 adjoining the engagement section 31, where the part 5, for example a textile section of a garment, can be fastened.

In a further variant, it is also conceivable and possible to provide a

fastening section

200, 300 at each

closure part

2, 3, with respect to which a recess is set back from the bottom 221, 321 of the

intermediate space

22, 32, so that the

intermediate space

22, 32 is shaped into the respective

basic body

20, 30 according to the type of recess.

The idea on which the invention is based is not limited to the embodiments described above, but can also be implemented in completely different types of ways.

Closures of the type described here can be used in completely different ways, for example in clothing, such as shoes, jackets, shirts, etc.

In a specific embodiment, a shoe, in particular a sports shoe, has a closure device of the type described here. Closure devices are used, for example, for closing and, if necessary, tightening shoes (for example in ski boots).

However, such closure devices can also be used, for example, in medical aids, such as orthotics or prostheses.

For example, separate magnetic elements can be used as magnetic sections, which are inserted into associated recesses on the base body and bonded to the base body, for example with an epoxy adhesive.

The magnetic sections can each be formed by a permanent-magnetic element. Alternatively, it is also conceivable to provide a permanent magnet element at one closure part, for example, but to provide a passive magnet element in the form of a ferromagnetic armature at the other closure part, which magnetically interacts with the permanent magnet in an attractive manner.

As a further alternative, it is also conceivable that, instead of a discrete element, the base body of the closure part itself is at least partially manufactured from a magnetized material.

List of reference numerals

1 closure device

2 first locking part

20 base body of first locking part

200 fastening section

21 first joining section

211 first permanent magnet

212 receiving opening

22. 22-1, 22-2 intermediate space

220 middle section

23 first form-fitting section

231 first shape mating surface

24 first guide section

241 first guide surface

25 first abutting section

26 second abutting section

27 second guide section

271 second guide surface

28 form-fitting section

3 second locking part

30 base of second locking member

300 fastening section

31 second joining section

311 second permanent magnet

312 receiving opening

313 abutting surface

32 intermediate space

321 bottom part

33 second formfitting section

331 second shape mating surface

34 first guide section

341 first guide surface

35 first abutting section

36 second abutting section

37 second guide section

371 second guide surface

38 form-fitting section

4. Section 5

Direction of load B

Force F

K1, K2 magnetic force

M1 first magnetization direction

M2 second magnetization direction

N North Pole

R1 and R2 move relatively

South pole of S

Extension plane of XY, X 'Y' substrate

Z direction of closure

Claims

1. A closure device (1) for releasably connecting two parts, the closure having:

-a first locking part (2) having: a first substrate (20); at least two first joining sections (21) formed at the first base body (20), which are spaced apart from one another in the load direction (B) and form an intermediate space (22) between them; and at least one first magnetic section (211) arranged at the first base body (20), and

-a second locking member (3) having: a second substrate (30); at least one second joining section (31) formed at the second base body (30); and at least one second magnetic section (311) arranged at the second base body (30),

wherein the first closure part (2) and the second closure part (3) are placeable together such that in a closed state the at least one second engagement section (31) is at least partially accommodated by the intermediate space (22) for supporting a load acting between the first closure part (2) and the second closure part (3) in the load direction (B), wherein in the closed state the at least one first magnetic section (211) and the at least one second magnetic section (311) cooperate in a magnetically attractive manner,

it is characterized in that the preparation method is characterized in that,

the first base body (20) and/or the second base body (30) are made at least in sections of a flexible material.

2. A locking device (1) according to claim 1 characterized in that at least two first joining sections (21) of the first basic body (20) and/or at least one second joining section (31) of the second basic body (30) are made of a flexible material.

3. A locking device (1) according to claim 1 or 2, wherein the intermediate section (220) of the first basic body (20) between at least two first joining sections (21) of the first basic body (20) is made of a flexible material.

4. A locking device (1) according to any of claims 1 to 3 characterized in that the flexible material is of a thermoplastic elastomer, in particular a thermoplastic polyurethane elastomer, or of a synthetic rubber material, in particular nitrile rubber.

5. A locking device (1) according to any of the preceding claims, characterized in that the flexible material has fibres, in particular glass fibres, in particular with a share of less than 15 weight percent.

6. A locking device (1) according to any one of the preceding claims, characterized in that the at least two first engagement sections (21) and/or the at least one second engagement section (31) extend in the form of a tab transversely to the load direction (B).

7. The locking device (1) according to any one of the preceding claims, wherein the at least one first magnetic section (211) is formed by a magnetic element received in a receiving opening (212) of the first base body (20) and/or the at least one second magnetic section (311) is formed by a magnetic element received in a receiving opening (312) of the second base body (30).

8. A locking device (1) according to any of the preceding claims, characterized in that one first magnetic section (211) each is arranged within the at least two first engagement sections (21) and/or that a second magnetic section (311) is arranged within the at least one second engagement section (31).

9. A locking device (1) according to any of the preceding claims characterized in that the at least one first magnetic section (211) and/or the at least one second magnetic section (311) is magnetized along a magnetization direction (M1, M2) which is collinear with the load direction (B).

10. A locking device (1) according to any one of the preceding claims wherein the at least one second engagement section (31) has an abutment surface (313) which in the closed state abuts one of the at least two first engagement sections (21) to support a load acting at the second locking part (3) in the load direction (B).

11. A locking device (1) according to claim 10, wherein the abutment surface (313) is inclined with respect to the load direction (B) and with respect to a closing direction (Z) such that upon loading at the second locking part (3) in the load direction (B) the at least one second engagement section (31) is loaded with a force component in the closing direction (Z) with respect to the first locking part (2), wherein the first locking part (2) and the second locking part (3) are placeable with respect to each other in the load direction and the closing direction.

12. A locking device (1) according to any of the preceding claims wherein the first base (20) and/or the second base (30) is curved as seen in the load direction (B).

13. A locking device (1) according to any of the preceding claims wherein the first base (20) is connectable with a first part (4) and the second base (30) is connectable with a second part (5), wherein

-the first chassis (20) having a first fastening section (200) via which the first chassis (20) is connected with the first part (4), wherein the first fastening section (200) defines a plane extending in the load direction (B) relative to which a bottom (221) of the intermediate space (22) is retracted, and/or

-the second chassis (30) having a second fastening section (300) via which the second chassis (30) is connected with the second component (5), wherein the second fastening section (200) defines a plane extending along the load direction (B) with respect to which a bottom (321) connected to the at least one second engagement section (31) is retracted.

14. A locking device (1) according to any one of the preceding claims, wherein the first locking part (2) comprises more than two first engagement sections (21) which are evenly spaced apart from each other along the load direction (B), wherein each two adjacent ones of the first engagement sections (21) constitute an intermediate space (22) between them, which intermediate space is constituted for at least partially accommodating the at least one second engagement section (31) in the closed state.

15. A closure (1) for releasably connecting two parts, said closure having:

it is characterized in that the preparation method is characterized in that,

the first base body (20) and/or the second base body (30) are curved, viewed in the load direction (B).

16. A closure (1) for releasably connecting two parts, said closure having:

it is characterized in that the preparation method is characterized in that,

the first base body (20) can be connected to a first component (4) and the second base body (30) can be connected to a second component (5), wherein

17. Garment, in particular a shoe, a jacket or a shirt, having a closure according to any of the preceding claims.